名词
中文翻译：Unknown
同义词：
['support', 'backup', 'backing up', 'supporter']
例句：
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1. The server needs to be backed up regularly to prevent data loss.
服务器需要定期备份以防止数据丢失。
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2. He backed up his work before leaving for vacation.
他度假前备份了他的工作。
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3. The company is considering a backup plan in case of a natural disaster.
该公司正在考虑一个备用计划，以防自然灾害。